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Finding the Fourth Proportional to 293,789.52, 440,605.56 and 127,538

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Solution

The fourth proportional to 293,789.52, 440,605.56 and 127,538 is: 191,272.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,789.52 : 440,605.56 = 127,538 : x
  2. Step 2: Convert to fraction form
    293,789.52/440,605.56 = 127,538/x
  3. Step 3: Cross multiply
    293,789.52x = 440,605.56 × 127,538
  4. Step 4: Simplify right side
    293,789.52x = 56,193,951,911.28
  5. Step 5: Solve for x
    x = 56,193,951,911.28/293,789.52
  6. Step 6: Final answer
    x = 191,272.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.